package org.norocks.sql;

import java.sql.Array;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.Clob;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.NClob;
import java.sql.PreparedStatement;
import java.sql.SQLClientInfoException;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Savepoint;
import java.sql.Statement;
import java.sql.Struct;
import java.util.Map;
import java.util.Properties;

/**
 * Connection Advanced (ConnectionA) is a wrapper class for java.sql.Connection.
 * It can be used as a standard Connection, but you can specify, can this Connection be 
 * committed or rolled back, closed, or can autoCommit flag be set to TRUE.
 *  
 * @author Dmitriy Bannikov
 * @version 1.0.1
 *
 */
public class ConnectionA implements Connection
{

	private Connection connection;
	private boolean commitable;
	private boolean closable;
	private boolean autocommitable;

	public ConnectionA(Connection connection)
	{
		this(connection, true, true, true);
	}

	/**
	 * Constructor
	 * @param connection standard java.sql.Connection
	 * @param commitable if FALSE, commit() and rollback() method calls will be ignored
	 * @param closable if FALSE, close() method call will be ignored
	 * @param autocommitable  if FALSE, setAutoCommit(true) method call will be ignored
	 */
	public ConnectionA(Connection connection, boolean commitable, boolean closable, boolean autocommitable)
	{
		this.connection = connection;
		this.commitable = commitable;
		this.closable = closable;
		this.autocommitable = autocommitable;

		if (!autocommitable)
		{
			try
			{
				connection.setAutoCommit(false);
			}
			catch (Exception ignore)
			{

			}
		}
	}

	/**
	 * ConnectionA cannot be initialized without arguments
	 */
	@SuppressWarnings("unused")
	private ConnectionA()
	{

	}

	/**
	 * @return wrapped java.sql.Connection
	 */
	public Connection getConnection()
	{
		return connection;
	}

	@Override
	public boolean isWrapperFor(Class<?> iface) throws SQLException
	{
		return connection.isWrapperFor(iface);
	}

	@Override
	public <T> T unwrap(Class<T> iface) throws SQLException
	{
		return connection.unwrap(iface);
	}

	@Override
	public void clearWarnings() throws SQLException
	{
		connection.clearWarnings();
	}

	@Override
	public void close() throws SQLException
	{
		if (closable)
		{
			connection.close();
		}
	}

	@Override
	public void commit() throws SQLException
	{
		if (commitable)
		{
			connection.commit();
		}
	}

	@Override
	public Array createArrayOf(String typeName, Object[] elements) throws SQLException
	{
		return connection.createArrayOf(typeName, elements);
	}

	@Override
	public Blob createBlob() throws SQLException
	{
		return connection.createBlob();
	}

	@Override
	public Clob createClob() throws SQLException
	{
		return connection.createClob();
	}

	@Override
	public NClob createNClob() throws SQLException
	{
		return connection.createNClob();
	}

	@Override
	public SQLXML createSQLXML() throws SQLException
	{
		return connection.createSQLXML();
	}

	@Override
	public Statement createStatement() throws SQLException
	{
		return connection.createStatement();
	}

	@Override
	public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException
	{
		return connection.createStatement(resultSetType, resultSetConcurrency);
	}

	@Override
	public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
	{
		return connection.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability);
	}

	@Override
	public Struct createStruct(String typeName, Object[] attributes) throws SQLException
	{
		return connection.createStruct(typeName, attributes);
	}

	@Override
	public boolean getAutoCommit() throws SQLException
	{
		return connection.getAutoCommit();
	}

	@Override
	public String getCatalog() throws SQLException
	{
		return connection.getCatalog();
	}

	@Override
	public Properties getClientInfo() throws SQLException
	{
		return connection.getClientInfo();
	}

	@Override
	public String getClientInfo(String name) throws SQLException
	{
		return connection.getClientInfo(name);
	}

	@Override
	public int getHoldability() throws SQLException
	{
		return connection.getHoldability();
	}

	@Override
	public DatabaseMetaData getMetaData() throws SQLException
	{
		return connection.getMetaData();
	}

	@Override
	public int getTransactionIsolation() throws SQLException
	{
		return connection.getTransactionIsolation();
	}

	@Override
	public Map<String, Class<?>> getTypeMap() throws SQLException
	{
		return connection.getTypeMap();
	}

	@Override
	public SQLWarning getWarnings() throws SQLException
	{
		return connection.getWarnings();
	}

	@Override
	public boolean isClosed() throws SQLException
	{
		return connection.isClosed();
	}

	@Override
	public boolean isReadOnly() throws SQLException
	{
		return connection.isReadOnly();
	}

	@Override
	public boolean isValid(int timeout) throws SQLException
	{
		return connection.isValid(timeout);
	}

	@Override
	public String nativeSQL(String sql) throws SQLException
	{
		return connection.nativeSQL(sql);
	}

	@Override
	public CallableStatement prepareCall(String sql) throws SQLException
	{
		return connection.prepareCall(sql);
	}

	@Override
	public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException
	{
		return connection.prepareCall(sql, resultSetType, resultSetConcurrency);
	}

	@Override
	public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
	{
		return connection.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
	}

	@Override
	public PreparedStatement prepareStatement(String sql) throws SQLException
	{
		return connection.prepareStatement(sql);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException
	{
		return connection.prepareStatement(sql, autoGeneratedKeys);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException
	{
		return connection.prepareStatement(sql, columnIndexes);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException
	{
		return connection.prepareStatement(sql, columnNames);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException
	{
		return connection.prepareStatement(sql, resultSetType, resultSetConcurrency);
	}

	@Override
	public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) throws SQLException
	{
		return connection.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability);
	}

	@Override
	public void releaseSavepoint(Savepoint savepoint) throws SQLException
	{
		connection.releaseSavepoint(savepoint);
	}

	@Override
	public void rollback() throws SQLException
	{
		if (commitable)
		{
			connection.rollback();
		}
	}

	@Override
	public void rollback(Savepoint savepoint) throws SQLException
	{
		if (commitable)
		{
			connection.rollback(savepoint);
		}
	}

	@Override
	public void setAutoCommit(boolean autoCommit) throws SQLException
	{
		if (autoCommit && autocommitable)
		{
			connection.setAutoCommit(autoCommit);
		}
	}

	@Override
	public void setCatalog(String catalog) throws SQLException
	{
		connection.setCatalog(catalog);
	}

	@Override
	public void setClientInfo(Properties properties) throws SQLClientInfoException
	{
		connection.setClientInfo(properties);
	}

	@Override
	public void setClientInfo(String name, String value) throws SQLClientInfoException
	{
		connection.setClientInfo(name, value);
	}

	@Override
	public void setHoldability(int holdability) throws SQLException
	{
		connection.setHoldability(holdability);
	}

	@Override
	public void setReadOnly(boolean readOnly) throws SQLException
	{
		connection.setReadOnly(readOnly);
	}

	@Override
	public Savepoint setSavepoint() throws SQLException
	{
		return connection.setSavepoint();
	}

	@Override
	public Savepoint setSavepoint(String name) throws SQLException
	{
		return connection.setSavepoint(name);
	}

	@Override
	public void setTransactionIsolation(int level) throws SQLException
	{
		connection.setTransactionIsolation(level);
	}

	@Override
	public void setTypeMap(Map<String, Class<?>> map) throws SQLException
	{
		connection.setTypeMap(map);
	}

	public boolean isCommitable()
	{
		return commitable;
	}

	public void setCommitable(boolean commitable)
	{
		this.commitable = commitable;
	}

	public boolean isClosable()
	{
		return closable;
	}

	public void setClosable(boolean closable)
	{
		this.closable = closable;
	}

	public boolean isAutoCommitable()
	{
		return autocommitable;
	}

	public void setAutoCommitable(boolean autocommitable)
	{
		this.autocommitable = autocommitable;
	}

	public void setConnection(Connection connection)
	{
		this.connection = connection;
	}

}
